Section Header Description
The section header uses bytes 1 through 16 (this manual begins counting at
1; there is no byte 0). The 16 bytes of the section header are as follows:
Byte Position
110 bytes - Section name ("DATA space space spac e space space
space" in ASCII for the DATA instruction).
11 1 byte - Reserved
12 1 byte - Module ID (34 decimal for the Agilent 1670G)
13 4 bytes - Length of block in number of bytes that when converted to decimal,
specifies the number of bytes contained in the data block.
Section Data
For the SYSTem:DATA command, the <section data> parameter consists of
two parts: the data preamble and the acquisition data. These are described
in the following two sections.
Data Preamble Description
The block data is organized as 554 bytes of preamble information, followed by
a variable number of bytes of data. The preamble gives information for each
analyzer describing the amount and type of data captured, where the trace
point occurred in the data, which pods are assigned to which analyzer, and
other information.
The preamble (bytes 17 through 590) consists of the following 574 bytes:
17 4 bytes - Instrument ID (always 1670 decimal)
21 4 bytes - Revision Code
25 4 bytes - number of pod pairs used in last acquisition
29 4 bytes - Analyzer ID (0 for Agilent 1670G)
DATA and SETup Commands
Section Header Description
27–6